They took the Internet by storm with their covers of Nicki Minaj, Chris Brown, and Lil Wayne, and now Amy Heidemann and Nick Noonan, known collectively as Karmin, unleash their debut single. The duo blows up the spotlight on “Crash Your Party,” an acoustic-meets-rap record that samples Black Sheep’s 1991 hip-hop classic “The Choice Is Yours.”

“Who do you think you are, a super S-T-A-R?/ Who do you think you are, you can kiss my oh my gah!” sings Amy before showing off her fast-paced rap skills.

Karmin’s debut album is due next year on Epic Records. “The best way to classify it is hip-pop, but we want to bring back some of the heavy lyrics,” says Nick, while Amy adds, “We want music that’s gonna stick around.”